/* Shared palette — identical token VALUES to home.css, theme-aware.
   Legacy var names (--panel, --blue, --green, --gold, --red) are kept and
   mapped onto the home palette so every classic page follows the system theme. */
:root {
  --paper: #f4f2ea; --ink: #17211d; --muted: #5d6b62; --line: #dcd8ca;
  --water: #0d4b57; --water2: #1f7a8c; --algae: #2fae86; --gold: #a3701a; --card: #fbfaf5;
  --green: #2d6a4f; --red: #a33b2f; --on-gold: #fff;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0b1512; --ink: #e7ece7; --muted: #93a49a; --line: #22302b;
    --water: #4bb3c4; --water2: #2b8fa1; --algae: #4fc79a; --gold: #d0a24e; --card: #121d19;
    --green: #2f8f6b; --red: #e0796b; --on-gold: #1c1508; }
}
:root[data-theme="dark"] { --paper: #0b1512; --ink: #e7ece7; --muted: #93a49a; --line: #22302b;
  --water: #4bb3c4; --water2: #2b8fa1; --algae: #4fc79a; --gold: #d0a24e; --card: #121d19;
  --green: #2f8f6b; --red: #e0796b; --on-gold: #1c1508; }
:root[data-theme="light"] { --paper: #f4f2ea; --ink: #17211d; --muted: #5d6b62; --line: #dcd8ca;
  --water: #0d4b57; --water2: #1f7a8c; --algae: #2fae86; --gold: #a3701a; --card: #fbfaf5;
  --green: #2d6a4f; --red: #a33b2f; --on-gold: #fff; }

/* Derived tokens (resolve per-theme automatically) */
:root {
  --panel: var(--card);                                       /* card / panel surface */
  --blue: var(--water2);                                      /* legacy accent name */
  --panel2: color-mix(in srgb, var(--card) 55%, var(--paper)); /* raised chip/button surface */
  --tint: color-mix(in srgb, var(--ink) 8%, var(--paper));    /* soft inset surface */
  --hover: color-mix(in srgb, var(--water2) 12%, var(--card)); /* hover surface */
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* canonical site header — same format as home.html */
.nav { position: sticky; top: 0; z-index: 600;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 12px 22px; background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink);
  font-size: 18px; letter-spacing: -0.01em; }
.brand strong { color: var(--water2); font-weight: 800; }
.brand span { font-weight: 500; }
.mini-nav { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.mini-nav a { padding: 7px 12px; border-radius: 7px; text-decoration: none; color: var(--ink);
  font-size: 14px; font-weight: 600; }
.mini-nav a:hover { background: color-mix(in srgb, var(--water2) 14%, transparent); }
.mini-nav a[aria-current="page"] { background: color-mix(in srgb, var(--water2) 18%, transparent);
  color: var(--ink); font-weight: 700; }

/* page title block — sits below the shared header */
.page-head { padding: 22px 32px 0; }
.page-head h1 { margin: 0; }

.eyebrow {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

a { color: var(--water2); }

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 30px;
  line-height: 1.1;
}

h2 {
  margin-bottom: 12px;
  font-size: 16px;
}

.status {
  display: grid;
  gap: 3px;
  min-width: 190px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel2);
}

.status span {
  color: var(--muted);
  font-size: 12px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 20px;
  padding: 20px;
}

.controls,
.dashboard {
  min-width: 0;
}

.controls {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

button {
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--panel2);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--hover);
}

label {
  display: grid;
  gap: 7px;
  margin-top: 18px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

output {
  justify-self: start;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--green);
}

.dashboard {
  display: grid;
  gap: 16px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metrics article,
.chart-wrap,
.analysis-grid > div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metrics article {
  display: grid;
  gap: 6px;
  min-height: 118px;
  padding: 16px;
}

.metrics span,
.metrics small {
  color: var(--muted);
}

.metrics span {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.metrics strong {
  font-size: 30px;
  line-height: 1.05;
}

.chart-wrap {
  min-height: 360px;
  padding: 14px;
}

canvas {
  display: block;
  width: 100%;
  height: min(48vh, 420px);
}

.analysis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.analysis-grid > div {
  padding: 16px;
}

.analysis-grid p,
.analysis-grid li,
footer {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

ul {
  margin: 0;
  padding-left: 18px;
}

li + li {
  margin-top: 8px;
}

footer {
  padding: 0 20px 22px;
}

@media (max-width: 860px) {
  .layout,
  .metrics,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .nav { padding: 10px 14px; }
  .mini-nav { justify-content: flex-start; }

  .page-head {
    padding: 18px 20px 0;
  }

  .layout {
    padding: 14px;
  }

  h1 {
    font-size: 25px;
  }
}

/* Canonical grouped site nav (sitenav.js) — identical on every page, same as home. */
.nav nav.groupnav { display: flex; flex-direction: column; gap: 4px; }
.navgroup { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.navlabel { font-size: 10.5px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--ink) 55%, transparent); min-width: 118px; }
.navgroup a { padding: 7px 12px; border-radius: 7px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 14px; }
.navgroup a:hover { background: var(--hover, var(--tint)); }
.navgroup a[aria-current="page"] { background: var(--tint); color: var(--blue); }
@media (max-width: 700px) {
  .navlabel { min-width: 100%; margin-top: 2px; }
  .navgroup a { padding: 6px 10px; font-size: 14px; }
}